<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>homework</title>
		<style>
			*{
				margin: 0;
				padding: 0;
			}
			.box1{
				width: 300px;
				/* background-color: rgba(0, 255, 0, 0.5); */
				margin: 100px auto;
				text-align: center;
				border: 2px solid #3C545C;
			}
			.img1{
				margin-top: -40px;
				width: 80px;
			}
			input{
				height: 30px;
				width: 80%;
				margin-bottom: 20px;
			}
			.box1>.in1{
				padding: 0 5px;
			}
					
		</style>
		
	</head>
	<body>
		<div class="box1">
			<img src="./img/head.jpeg" class="img1">
			<input type="text" class="in1" placeholder="请输入用户名">
			<input type="password" class="in1" placeholder="请输入密码">
			<input type="button" value="登录">
		</div>
	
	</body>
</html>